In 1993, the town of Ismay changed its name to "Joe." A Kansas City radio station convinced the population (all 22 of them) to do it as a publicity gimmick when the legendary Joe Montana was traded to the Kansas City Chiefs. Back then the champion football player was a household name, and the town voted for the name change to last at least for the duration of football season.
Montana led his team to victory, and retired from football a few years later. The town eventually lapsed into calling itself Ismay again, although signs for "Joe" remained. Funds raised from the sale of "Joe, Montana" souvenirs enabled the town to build a new fire station.
A visitor took this photo of a sign for "Joe, MT" in 2002, but couldn’t “confirm there's anything still to see.”